The Sega Model 2 is an arcade system board released by Sega in 1993. Like the Model 1, it was developed in cooperation with Martin Marietta, and was a further advancement of the earlier Model 1 system. The most noticeable improvement was texture mapping, which enabled polygons to be painted with bitmap images, as opposed to the limited monotone flat shading that Model 1 supported.

Despite its high pricetag, the Model 2 platform was very successful. It featured some of the highest grossing arcade games of all time: Daytona USA[15], Virtua Fighter 2, Cyber Troopers Virtual-On and The House of the Dead to name a few.

Model 2 has four different varieties, commonly referred to as Model 2, Model 2A-CRX, Model 2B-CRX and Model 2C-CRX. While Model 2 and 2A-CRX use a custom DSP with internal code for the geometrizer, 2B-CRX and 2C-CRX use well documented DSPs and upload the geo